1/2"
= 
480
square feet per ton 
1"
= 
240
square feet per ton 
1
1/2" = 
160
square feet per ton 
2"
= 
120
square feet per ton 
2
1/2" = 
96
square feet per ton 
3"
= 
80
square feet per ton 
3
1/2" = 
68
square feet per ton 
4"
= 
60
square feet per ton 
5"
= 
48
square feet per ton 
6"
= 
40
square feet per ton 
7"
= 
35
square feet per ton 
8"
= 
30
square feet per ton 
9"
= 
27
square feet per ton 
10"
= 
24
square feet per ton 
1
1/2"  3" River Rock = 90 sq. ft. per yard 
3"
 8" River Rock = 50 sq. ft. per ton 
6"
& up River Rock = 25 sq. ft. per ton 

MULCH 
5"
Thick = 
64
square feet per yard 
4"
Thick = 
80
square feet per yard 
3"
Thick = 
107
square feet per yard 
2"
Thick = 
160
square feet per yard 
1"
Thick = 
320
square feet per yard 

1
ton = 20 cubic feet 
1
yard = 27 cubic feet 
1.33
tons per cubic yard 
2700
lbs. per cubic yard 
2000
lbs. per ton 
Cubic
feet / 27 x 1.33 = tons 
Cubic
yards x 1.33 = tons 
Sq.
yds x 9 = sq. ft. / thickness = ton 
Square
feet / 120 = tons 
43560
square fet per acre 
Sq.
ft = length x width 
Sq.
ft of triange = 1/2 length x width 
Sq.
ft of circle = 3.14 x radius squared 
1
1/2 tons = 1 cubic yard of ABC 

5
Gallon Bucket = approx. 60 lbs. 
CINDERS 

4"
Thick = 
400
square feet per yard 
3"
Thick = 
200
square feet per yard 
2"
Thick = 
133
square feet per yard 
1"
Thick = 
100
square feet per yard 
